Rockwell Automation 20G PowerFlex 750-Series AC Drives User Manual
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Rockwell Automation Publication 750-RM002B-EN-P - September 2013
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Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
Chapter 6
19.
Select the Scaling category.
20.
From the Load Type pull-down menu, choose the appropriate value for
your device.
This example uses a Rotary Transmission.
21.
In the Transmission Ratio boxes, type the appropriate values for your
device.
This example uses a ratio of 5:1.
22.
In the Scaling Units box, type the appropriate value for your device.
23.
In the Scaling Position Units box, type the appropriate value for your
device.
This example uses 30 position units for every 1.0 load encoder revolution
on a rotary axis (for example a dial), that unwinds to zero position after 90
units accumulate.
The velocity loop is controlled by the motor encoder feedback. Because a
mechanical transmission exists between the motor and load side, the
scaling units are potentially different between the two encoders.